The survey shows a significant religious difference separating seniors and Millennials, and the number of each who identify as religiously unaffiliated. Nearly one-third (31%) of Millennials identify as religiously unaffiliated, compared to roughly 1-in-10 (11%) seniors. Millennials (13%) are also about four times more likely than seniors (3%) to identify as atheist or agnostic.

One thing is certain, the religious landscape of the United States is becoming much more diverse, and that diversity is generational. The survey shows that more than 7-in-10 (71%) seniors identify as some type of white Christian, while less than 3-in-10 (28%) of Millennials identify as white Christian.